Dehumidifier apparatus and disposable cartridge therefor

ABSTRACT

A dehumidifier apparatus is provided. The apparatus includes a housing having an interior space and a vent for permitting airflow into the interior space. The apparatus also includes a cartridge sized for removable insertion into the interior space of the housing. The cartridge includes a tray defining a first pocket, a second pocket, and a channel extending from the first pocket to the second pocket. The cartridge also includes a cover coupled to the tray over the first pocket such that the first pocket is in fluid communication with the second pocket via the channel. The cover has a first layer and a second layer detachable from the first layer. The first layer is gas permeable and liquid impermeable. The second layer is gas impermeable and liquid impermeable. The cartridge further includes a desiccant material contained in the first pocket by the cover.

BACKGROUND OF THE DISCLOSURE

The subject matter described herein relates generally to a dehumidifierapparatus and, more particularly, to a dehumidifier apparatus and adisposable cartridge therefor.

Many known nonelectric dehumidifiers have a compartment containing adesiccant material that absorbs moisture from the air, and a trapsituated beneath the compartment for collecting water discharged fromthe desiccant material when the desiccant material becomessupersaturated. However, with some such dehumidifiers, it can bedifficult to deploy the dehumidifier, refill the desiccant material,monitor the water level in the trap, and/or empty water from the trapwhen the trap is full. Moreover, at least some known dehumidifiers ofthis type are prone to water spillage from the trap when thedehumidifier is dropped or otherwise tips over.

It would be useful, therefore, to provide a nonelectric dehumidifierapparatus that is easier to deploy, refill, monitor, and/or empty.

BRIEF DESCRIPTION OF THE DISCLOSURE

In one aspect, a dehumidifier apparatus is provided. The apparatusincludes a housing having an interior space and a vent for permittingairflow into the interior space. The apparatus also includes a cartridgesized for removable insertion into the interior space of the housing.The cartridge includes a tray defining a first pocket, a second pocket,and a channel extending from the first pocket to the second pocket. Thecartridge also includes a cover coupled to the tray over the firstpocket such that the first pocket is in fluid communication with thesecond pocket via the channel. The cover has a first layer and a secondlayer detachable from the first layer. The first layer is gas permeableand liquid impermeable. The second layer is gas impermeable and liquidimpermeable. The cartridge further includes a desiccant materialcontained in the first pocket by the cover.

In another aspect, a disposable cartridge for a dehumidifier apparatusis provided. The cartridge includes a tray defining a first pocket, asecond pocket, and a channel extending from the first pocket to thesecond pocket. The cartridge also includes a cover coupled to the trayover the first pocket such that the first pocket is in fluidcommunication with the second pocket via the channel. The cover has afirst layer and a second layer detachable from the first layer. Thefirst layer is gas permeable and liquid impermeable. The second layer isgas impermeable and liquid impermeable. The cartridge further includes adesiccant material contained in the first pocket by the cover.

In another aspect, a method of making a disposable cartridge for adehumidifier apparatus is provided. The method includes providing a traydefining a first pocket, a second pocket, and a channel extending fromthe first pocket to the second pocket. The method also includesinserting a desiccant material in the first pocket of the tray. Themethod further includes coupling a cover to the tray over the firstpocket such that the first pocket is in fluid communication with thesecond pocket via the channel and such that the desiccant material iscontained in the first pocket. The cover has a first layer and a secondlayer detachable from the first layer. The first layer is gas permeableand liquid impermeable. The second layer is gas impermeable and liquidimpermeable.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a front perspective view of an exemplary dehumidifierapparatus;

FIG. 2 is a back exploded view of the apparatus shown in FIG. 1;

FIG. 3 is a top exploded view of a disposable cartridge of the apparatusshown in FIG. 2; and

FIG. 4 is a schematic cross-sectional view of the apparatus shown inFIG. 1 when deployed.

DETAILED DESCRIPTION OF THE DISCLOSURE

The methods and systems described herein facilitate providing adehumidifier apparatus that is easily deployed, monitored, andrefilled/emptied. More specifically, the methods and systems describedherein facilitate providing a dehumidifier apparatus that is easilydeployed by removing part of a cover from a cartridge, inserting thecartridge into a housing, and positioning the housing in a location forwhich dehumidification is desired. The method and systems describedherein also facilitate providing an apparatus that is easily monitoredto determine whether the cartridge is in need of replacement, in thatthe cartridge uses the liquid removed from the air to create a coloredgel that is visible to the user through a tray of the cartridge and awindow of the housing. Moreover, the methods and systems describedherein further facilitate providing an apparatus that is easilyrefilled/emptied by pulling the cartridge out of the housing fordisposal, and inserting a new cartridge into the housing.

FIG. 1 is a front perspective view of an exemplary dehumidifierapparatus 100, and FIG. 2 is a back exploded view of apparatus 100. Inthe exemplary embodiment, apparatus 100 is a nonelectric apparatus andincludes a re-usable (or multiple-use) housing 102 and a disposable (orsingle-use) cartridge 104 sized for removable insertion into housing102. Optionally, apparatus 100 may be provided in a kit that includeshousing 102 and a plurality of cartridges 104. In other embodiments,housing 102 and cartridge 104 may each be made for multi-use orsingle-use applications without departing from the scope of thisinvention (e.g., housing 102 may be made for disposal together withcartridge 104 after a single-use application, or cartridge 104 may bemade to be refillable (and thus reusable) together with housing 102).

In the exemplary embodiment, housing 102 is made from a rigid plasticmaterial and has a base 106, a hanger 108, and at least one wall 110defining an interior space 112 and an opening 114 through whichcartridge 104 is inserted into interior space 112. More specifically,housing 102 has a front wall 116, a back wall 118, and a pair of sidewalls 120 that collectively define interior space 112 and opening 114.Moreover, in other embodiments, housing 102 may be made from anysuitable material (e.g., a metal material) and may have any suitablenumber of walls 110 arranged in any suitable manner such that interiorspace 112 and opening 114 have any suitable shape that facilitatesenabling housing 102 to function as described herein. For example, insome embodiments, housing 102 may have only one wall 110 that issubstantially cylindrical, such that interior space 112 is alsosubstantially cylindrical and opening is substantially circular (withcartridge 104 likewise having a substantially cylindrical shape).

In the exemplary embodiment, base 106 is substantially flat to enablehousing 102 to stand upright on a support surface (e.g., a shelf or theground) when deployed, and hanger 108 includes a pair of hooks 122extending outward from back wall 118 to facilitate the suspension ofhousing 102 from a suitable structure (e.g., a clothes hanger) whendeployed. Optionally, base 106 and hanger 108 may have any suitableconfigurations that facilitate enabling housing 102 to function asdescribed herein. For example, in one embodiment, base 106 may have anon-flat curvature that nonetheless enables housing 102 to stand uprighton a support surface when deployed; and, in another embodiment, hanger108 may include a pair of eyelets (not shown) defined in back wall 118to receive separate hooks (not shown) for suspending housing 102 from asuitable structure when deployed. Alternatively, base 106 may not beconfigured to enable housing 102 to stand upright on a support surfacewhen deployed, and/or housing 102 may not have hanger 108 such thathousing 102 is not configured to be suspended when deployed.

In the exemplary embodiment, housing 102 has a vent 124 and at least onewindow 126. Vent 124 includes a plurality of apertures 128 defined infront wall 116, such that an upper region 130 (e.g., upper half) offront wall 116 has apertures 128 but a lower region 132 (e.g., lowerhalf) of front wall 116 does not have apertures 128. Moreover, window(s)126 include a first window 134 and a second window 136, each of whichhas a bottom portion 140 adjacent (and substantially coplanar with) base106, a back portion 142 adjacent (and substantially coplanar with) backwall 118, and a side portion 144 adjacent (and substantially coplanarwith) the respective side wall 120. In this manner, each window 126enables a user to view interior space 112 from the bottom, the side, andthe back of housing 102. In other embodiments, housing 102 may have anysuitable number of windows 126 and vents 124 (each with any suitablenumber of apertures 128) arranged in any suitable manner thatfacilitates enabling housing 102 to function as described herein. Forexample, in some embodiments, vent 124 may have only one aperture 128,and/or housing 102 may have only one window 126 that permits viewinginterior space 112 from only one viewpoint (e.g., the bottom, the back,or the side of housing 102).

FIG. 3 is an exploded view of cartridge 104. In the exemplaryembodiment, cartridge 104 is a blister-type package including a tray 146and a cover 148 coupled (e.g., bonded) to tray 146. Tray 146 is madefrom a rigid plastic material (e.g., a thermoformed plastic material)that is transparent or translucent. Tray 146 has a peripheral lip 150, afirst (or upper) pocket 152, a second (or lower) pocket 154, and a web156 that are integrally formed together as a single-piece, unitarystructure. More specifically, first pocket 152 has a back wall 158, inaddition to a top wall 160, a bottom wall 162, and a pair of side walls164 that collectively define a front opening 166 opposite back wall 158.Similarly, second pocket 154 has a back wall 168, in addition to a topwall 170, a bottom wall 172, and a pair of side walls 174 thatcollectively define a front opening 176 opposite back wall 168. Web 156extends from a first side segment 178 of lip 150 to a second sidesegment 180 of lip 150, thereby positioning second pocket 154 betweenweb 156 and a bottom segment 182 of lip 150, and positioning firstpocket 152 between web 156 and a top segment 184 of lip 150. Firstpocket bottom wall 162 and second pocket top wall 170 are thus spacedapart from one another across web 156.

In this manner, first pocket 152 and second pocket 154 are in fluidcommunication with one another across a plurality of open-faced (e.g.,substantially semi-cylindrical) channels 186 defined by web 156, suchthat channels 186 are spaced apart from one another along web 156.Optionally, in other embodiments, tray 146 may have any suitable numberof pockets and channels arranged in fluid communication with one anotherin any suitable manner that facilitates enabling cartridge 104 tofunction as described herein. For example, in one embodiment, tray 146may not have web 156 (i.e., channels 186 may not be defined by web 156),and/or tray 146 may have only one channel 186. In another embodiment,tray 146 may have a plurality of first pockets 152, and/or a pluralityof second pockets 154. In a further embodiment, lip 150 may not extendabout the entire periphery of tray 146, or alternatively tray 146 maynot have lip 150. Other arrangements are also contemplated withoutdeparting from the scope of this invention.

In the exemplary embodiment, cover 148 has a first layer 188 and asecond layer 190. First layer 188 is permeable to gas and impermeable toliquid (i.e., first layer 188 is a breathable and hydrophobic fabric,such that air can flow through first layer 188 in both directions, butliquid cannot flow through first layer 188 in either direction). Secondlayer 190, on the other hand, is impermeable to both gas and liquid(e.g., second layer 190 is a thin film such as, for example, a foil).First layer 188 is substantially rectangular and is coupled (e.g.,bonded) directly to lip 150 such that first layer 188 is not intended tobe detached from tray 146 by a user. Second layer 190, however, iscoupled (e.g., bonded) to first layer 188 (and is, hence, indirectlycoupled to lip 150) such that second layer 190 is intended to bedetached from first layer 188 and from tray 146 by a user. First layer188 and second layer 190 completely cover first pocket 152, secondpocket 154, and channels 186, thereby preventing fluid flow into pockets152, 154 before apparatus 100 is deployed. A desiccant material 192(shown in FIG. 2) (e.g., a granular desiccant material) is thus sealedinside first pocket 152, and a gel-forming material 194 (shown in FIG.2) (e.g., a gel-forming powder) is thus sealed inside second pocket 154.

In other embodiments, cover 148 may have any suitable number of layerscoupled to tray 146 in any suitable manner that facilitates enablingcartridge 104 to function as described herein. Although each layer 188,190 of cover 148 is a single-piece layer (i.e., a single sheet ofmaterial) that covers first pocket 152, second pocket 154, and channels186 in the exemplary embodiment, each layer 188, 190 may have anysuitable number of pieces in other embodiments, and the various piecesof each layer may be coupled together in any suitable manner. Forexample, in one embodiment, at least one layer 188, 190 may have a firstpiece (not shown) that covers first pocket 152 (and optionally channels186), and a second piece (not shown) that covers second pocket 154 (andoptionally channels 186), wherein the first piece is not coupleddirectly to the second piece. Moreover, in another embodiment, a firstpart of cover 148 (e.g., a part of cover 148 positioned over firstpocket 152) may have a first layer (e.g., a layer that is liquidimpermeable and gas permeable) and a detachable second layer (e.g., alayer that is liquid impermeable and gas impermeable), whereas a secondpart of cover 148 (e.g., a part of cover 148 positioned over secondpocket 154 and channels 186) may have only one layer (e.g., a layer thatis both liquid impermeable and gas impermeable).

FIG. 4 is a schematic cross-sectional view of apparatus 100 whendeployed. To deploy apparatus 100, second layer 190 is detached fromfirst layer 188 (and thus from lip 150) such that first layer 188 isexposed to the ambient, and cartridge 104 is then inserted into interiorspace 112 of housing 102 via opening 114 such that first layer 188 ofcover 148 faces front wall 116 of housing 102 with tray 146 (e.g.,bottom segment 182 of lip 150) seated on base 106. Housing 102 is theneither stood upright on a suitable support surface via base 106, or hungfrom a suitable structure via hanger 108. In this manner, ambient air197 is permitted to flow into and out of first pocket 152 via vent 124of housing 102 and first layer 188 of cover 148, with desiccant material192 absorbing vapor 196 (e.g., water vapor) from air 197. When desiccantmaterial 192 becomes supersaturated, desiccant material 192 dischargesliquid 198 (e.g., in the form of water droplets) that flows onto bottomwall 162 of first pocket 152 and into second pocket 154 via channels186. In second pocket 154, liquid 198 interacts with gel-formingmaterial 194 (shown in FIG. 2) to form a gel 199. Notably, in someembodiments, gel-forming material 194 includes (e.g., is mixed with) adye to facilitate forming a colored gel (e.g., a green or blue gel) thatis visible through walls 168, 170, 172, 174 of tray 146.

As desiccant material 192 continues to absorb vapor 196 and dischargeliquid 198, the amount of gel 199 in second pocket 154 graduallyincreases until it occupies substantially all of second pocket 154.Notably, because tray 146 is visible through window(s) 126, a user isthus able to quickly determine the fullness of second pocket 154 withouthandling apparatus 100, in that tray 146 is transparent or translucentand gel 199 is colored. When second pocket 154 is substantially full ofgel 199, the user removes cartridge 104 from housing 102 via opening 114and then inserts a new cartridge 104 after detaching second layer 190 ofthe new cartridge 104. The user then disposes of the removed cartridge104 in an appropriate manner, and periodically monitors the level of gel199 in the new cartridge 104 until it too is in need of replacement.This process is repeatable as desired to continually dehumidify anysuitable space.

Because the entire cartridge 104 (i.e., first pocket 152, desiccantmaterial 192, second pocket 154, and gel 199) is able to be removed anddiscarded as a single unit, the process for refilling apparatus 100 ismade quicker and easier. Moreover, because first layer 188 isimpermeable to liquid 198, all liquid 198 contained inside first pocket152 and/or second pocket 154 is prevented from spilling in the eventthat apparatus 100 (or cartridge 104) is tipped over, dropped, orotherwise mishandled during transport or deployment. Similarly, becauseliquid 198 is converted to gel 199 in second pocket 154, spillage ofliquid 198 from apparatus 100 is further minimized. Notably, someembodiments of apparatus 100 may not convert liquid 198 to gel 199 insecond pocket 154 (i.e., may not have gel-forming material 194) but,rather, may trap liquid 198 in second pocket 154 until cartridge 104 isdiscarded.

The methods and systems described herein therefore facilitate providinga dehumidifier apparatus that is easily deployed, monitored, andrefilled/emptied. More specifically, the methods and systems describedherein facilitate providing a dehumidifier apparatus that is easilydeployed by removing part of a cover from a cartridge, inserting thecartridge into a housing, and positioning the housing in a location forwhich dehumidification is desired. The method and systems describedherein also facilitate providing an apparatus that is easily monitoredto determine whether the cartridge is in need of replacement, in thatthe cartridge uses the liquid removed from the air to create a coloredgel that is visible to the user through a tray of the cartridge and awindow of the housing. Moreover, the methods and systems describedherein further facilitate providing an apparatus that is easilyrefilled/emptied by pulling the cartridge out of the housing fordisposal, and inserting a new cartridge into the housing.

Exemplary embodiments of an apparatus are described above in detail. Theapparatus described herein is not limited to the specific embodimentsdescribed herein, but rather, components of the apparatus may beutilized independently and separately from one another. For example, theapparatus described herein may have other applications not limited topracticing dehumidification, as described herein. Rather, the apparatusdescribed herein can be implemented and utilized in connection withvarious other industries.

This written description uses example embodiments, while disclosing thebest mode and enabling any person skilled in the art to practice theexample embodiments, including making and using any devices or systemsand performing any incorporated methods. The patentable scope of thisdisclosure is defined by the claims, and may include other examples thatoccur to those skilled in the art. Such other examples are intended tobe within the scope of the claims if they have structural elements thatdo not differ from the literal language of the claims, or if theyinclude equivalent structural elements with insubstantial differencesfrom the literal language of the claims.

What is claimed is:
 1. A dehumidifier apparatus comprising: a housingcomprising an interior space and a vent for permitting airflow into saidinterior space; and a cartridge sized for removable insertion into saidinterior space of said housing, wherein said cartridge comprises: a traydefining a first pocket, a second pocket, and a channel extending fromsaid first pocket to said second pocket; a cover coupled to said trayover said first pocket such that said first pocket is in fluidcommunication with said second pocket via said channel, wherein saidcover comprises a first layer and a second layer detachable from saidfirst layer, said first layer being gas permeable and liquidimpermeable, said second layer being gas impermeable and liquidimpermeable; and a desiccant material contained in said first pocket bysaid cover.
 2. A dehumidifier apparatus in accordance with claim 1,wherein said tray is made from a thermoformed plastic material.
 3. Adehumidifier apparatus in accordance with claim 1, wherein said secondlayer is a foil.
 4. A dehumidifier apparatus in accordance with claim 1,further comprising a gel-forming material contained in said secondpocket.
 5. A dehumidifier apparatus in accordance with claim 4, whereinsaid gel-forming material comprises a dye.
 6. A dehumidifier apparatusin accordance with claim 5, wherein said tray is one of transparent andtranslucent.
 7. A dehumidifier apparatus in accordance with claim 6,wherein said housing comprises a window through which said second pocketof said tray is visible.
 8. A disposable cartridge for a dehumidifierapparatus, said cartridge comprising: a tray defining a first pocket, asecond pocket, and a channel extending from said first pocket to saidsecond pocket; a cover coupled to said tray over said first pocket suchthat said first pocket is in fluid communication with said second pocketvia said channel, wherein said cover comprises a first layer and asecond layer detachable from said first layer, said first layer beinggas permeable and liquid impermeable, said second layer being gasimpermeable and liquid impermeable; and a desiccant material containedin said first pocket by said cover.
 9. A disposable cartridge inaccordance with claim 8, wherein said tray is made from a thermoformedplastic material.
 10. A disposable cartridge in accordance with claim 8,wherein said second layer is a foil.
 11. A disposable cartridge inaccordance with claim 8, further comprising a gel-forming materialcontained in said second pocket.
 12. A disposable cartridge inaccordance with claim 11, wherein said gel-forming material comprises adye.
 13. A disposable cartridge in accordance with claim 12, whereinsaid tray is one of transparent and translucent.
 14. A disposablecartridge in accordance with claim 8, wherein said tray comprises aplurality of spaced-apart channels.
 15. A method of making a disposablecartridge for a dehumidifier apparatus, said method comprising:providing a tray defining a first pocket, a second pocket, and a channelextending from the first pocket to the second pocket; inserting adesiccant material in the first pocket of the tray; and coupling a coverto the tray over the first pocket such that the first pocket is in fluidcommunication with the second pocket via the channel and such that thedesiccant material is contained in the first pocket, wherein the coverhas a first layer and a second layer detachable from the first layer,the first layer being gas permeable and liquid impermeable, the secondlayer being gas impermeable and liquid impermeable.
 16. A method inaccordance with claim 15, wherein providing a tray comprises forming thetray.
 17. A method in accordance with claim 16, wherein forming the traycomprises thermoforming the tray.
 18. A method in accordance with claim16, wherein forming the tray comprises forming the tray to be one oftransparent and translucent.
 19. A method in accordance with claim 15,further comprising inserting a gel-forming material in the secondpocket.
 20. A method in accordance with claim 19, further comprisingmixing a dye with the gel-forming material.